PHP使用Curl调用WebService接口

注意，操作HTTPS接口时，需要加上，否则会引起内存泄漏

curl_setopt($_ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($_ch, CURLOPT_SSL_VERIFYHOST, FALSE);

class CurlExec {
	private static $singleinstance = false;
	public static function getIntance() {
		if (self::$singleinstance == false) {
			self::$singleinstance = new self;
		}
		return self::$singleinstance;
	}
	function __construct() {}
    
	public function customKSort(&$input) {
	    ksort($input, SORT_NATURAL);
        
	    foreach ($input as &$v) {
	        if (is_array($v)) {
	            $this->customKSort($v);
	        }
	    }
	}
    
	public function buildSign($signData, $appkey) { 
		try {
    	    if (!is_array($signData)) {
    	        return '';
    	    }
    	    
    	    if (isset($signData['sign'])) {
    	        unset($signData['sign']);
    	    }
    	    
    	    $this->customKSort($signData);    
    	    $sign_str = urldecode(http_build_query($signData));
    	    $sign_str .= '&app_key=' . $appkey;
            
    	    return strtoupper(md5($sign_str));
		} catch (Exception $e) {
			Log::info("buildSign Exception: " . $e->getMessage(), Log::EXCEPT);
			return false;
		}
	}    
	
    public function get($url, $get_param, $appkey, $sec = Config::s_cur_timeout) { 
		try { 
    	    $get_param['sign'] = $this->buildSign($get_param, $appkey);
    	    $url .= urldecode(http_build_query($get_param));
            Log::info("CurlExec::get url = " . $url, Log::INFO);
    	    
    	    $_ch = curl_init();
    	    curl_setopt($_ch, CURLOPT_URL, $url);
    	    curl_setopt($_ch, CURLOPT_HEADER, false);
    	    curl_setopt($_ch, CURLOPT_RETURNTRANSFER, true);
    	    curl_setopt($_ch, CURLOPT_TIMEOUT, $sec);
            curl_setopt($_ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($_ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    	    
    	    $result = curl_exec($_ch);
            Log::info("CurlExec::get curl_exec1 = " . $result, Log::INFO);
            Log::info("CurlExec::get curl_exec2 = " . json_encode(json_decode($result, true), JSON_UNESCAPED_UNICODE), Log::INFO);
                        
    	    curl_close($_ch);
            
    	    return $result;   
		} catch (Exception $e) {
			Log::info("get Exception: " . $e->getMessage(), Log::EXCEPT);
			return false;
		}
    }
	
	public function post($url, $get_param, $post_param, $appkey) {  
		try { 
			$get_param['sign'] = self::buildSign(array_merge($get_param, $post_param), $appkey);
			$url .= urldecode(http_build_query($get_param));
    		Log::info("CurlExec::post url = " . $url, Log::INFO);
    		Log::info("CurlExec::post data = " . json_encode($post_param), Log::INFO);
    	    
    	    $_ch = curl_init();
    	    curl_setopt($_ch, CURLOPT_URL, $url);
    	    curl_setopt($_ch, CURLOPT_HEADER, false);
    	    curl_setopt($_ch, CURLOPT_RETURNTRANSFER, true);
    	    curl_setopt($_ch, CURLOPT_TIMEOUT, 3);
            curl_setopt($_ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($_ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    	    
    	    curl_setopt($_ch, CURLOPT_POST, true);
    	    curl_setopt($_ch, CURLOPT_POSTFIELDS, json_encode($post_param));
    	    
    	    $result = curl_exec($_ch);
            Log::info("CurlExec::post curl_exec1 = " . $result, Log::INFO);
            Log::info("CurlExec::post curl_exec = " . json_encode(json_decode($result, true), JSON_UNESCAPED_UNICODE), Log::INFO);
            
    	    curl_close($_ch);
            
    	    return $result; 
		} catch (Exception $e) {
			Log::info("get Exception: " . $e->getMessage(), Log::EXCEPT);
			return false;
		}
	}
}